Pump retrofitting: New Lease of Life for Old Pumps

For all of the dedication of a mine’s service group to the really helpful greatest practice in pump management, sometime, encountering cases of pump component put on and tear is inevitable – a matter of when and not if. And when it does occur, element put on inhibits pump efficiency. It is at that point where, timeously, mines might have to noticeably contemplate retrofitting as a feasible choice.
diaphragm seal

In this setting, where costs of capital equipment prices are rising, substitute could also be a sensible enterprise decision. In an advisory focused at mines and other industries, pump OEM, KSB Pumps, recommends retrofitting as a rational business determination: “Retrofitting is an excellent different to purchasing a brand new product and may be performed on pumps no matter their supposed use. It is equally appropriate for industrial, water provide and waste water disposal applications in addition to for the ability provide business.”

It is simply natural for mine operators to contemplate buying new pumps. New pump models meet contemporary necessities like improved energy efficiency, compliance with new legal necessities (relating to emissions and safety), prolonged service life and technology which produces working data. But this will not necessitate replacing an old pump mannequin, KSB Pumps says, as retrofitting could give an old pump a new lease of life, specifically in the following methods:
Save upkeep costs

Reduce power consumption

Achieve longer service life

Increase system availability

Comply with authorized necessities (e.g: TA-Luft, ATEX)

READ: Full-service functionality vital for dependable pump provide

Core areas in Retrofitting

The core focus areas in retrofitting are: hydraulic and mechanical modifications to the materials, above and beyond adjustments to the supplies.
Hydraulic modifications

Some of the hydraulic modifications could contain:
Remachining of current impellers

Installation of recent impellers for off-design situations

Optimisation of volute casing for off-design circumstances

Adjustment of the variety of levels (on multistage pumps)

Mechanical adjustments

The following are some of the mechanical changes:
Closed bearing brackets improve the smoothness of operation and extend the bearing life

Installation of mechanical seal techniques

Employment of cellular surface wear rings to enhance effectivity, rotor dynamics and dry working properties

Use of optimised supplies

The following are its a variety of the supplies that some of the optimised supplies that could be used:
Super duplex stainless steel grades or nickel alloys

Ceramic mineral castings for impellers, put on plates, cover and casing – to be used with finely dispersed, highly abrasive solutions

Non-metallic rings and bushes

Ceramic plain bearings

Surface coatings


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